{"title":"直接频率合成器采用高速预分频器用于800MHz移动电话收发器","authors":"J. Nakagawa, K. Yamashita, Y. Fujiwara, M. Toya","doi":"10.1109/VTC.1982.1623037","DOIUrl":null,"url":null,"abstract":"This paper presents a Compact direct frequency synthesizer with the channel capacity of 666 channels. Direct frequency synthesis technology in a 900MHz band has been achieved by development of three devices; a pair of pulse swallowing divider LSI's operating at the frequency of above 1GHz and a VCO (Voltage Controlled Oscillator) with a microstrip resonator. A channel switching time peculiar to cellular mobile telephone systems is faster than 30ms. The size of the developed synthesizer is 130 × 47 × 25mm, and the drain current is 165mA.","PeriodicalId":230854,"journal":{"name":"32nd IEEE Vehicular Technology Conference","volume":"88 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1982-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Direct frequency synthesizer using a high speed prescaler for 800MHz mobile telephone transceivers\",\"authors\":\"J. Nakagawa, K. Yamashita, Y. Fujiwara, M. Toya\",\"doi\":\"10.1109/VTC.1982.1623037\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper presents a Compact direct frequency synthesizer with the channel capacity of 666 channels. Direct frequency synthesis technology in a 900MHz band has been achieved by development of three devices; a pair of pulse swallowing divider LSI's operating at the frequency of above 1GHz and a VCO (Voltage Controlled Oscillator) with a microstrip resonator. A channel switching time peculiar to cellular mobile telephone systems is faster than 30ms. The size of the developed synthesizer is 130 × 47 × 25mm, and the drain current is 165mA.\",\"PeriodicalId\":230854,\"journal\":{\"name\":\"32nd IEEE Vehicular Technology Conference\",\"volume\":\"88 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1982-05-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"32nd IEEE Vehicular Technology Conference\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/VTC.1982.1623037\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"32nd IEEE Vehicular Technology Conference","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/VTC.1982.1623037","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Direct frequency synthesizer using a high speed prescaler for 800MHz mobile telephone transceivers
This paper presents a Compact direct frequency synthesizer with the channel capacity of 666 channels. Direct frequency synthesis technology in a 900MHz band has been achieved by development of three devices; a pair of pulse swallowing divider LSI's operating at the frequency of above 1GHz and a VCO (Voltage Controlled Oscillator) with a microstrip resonator. A channel switching time peculiar to cellular mobile telephone systems is faster than 30ms. The size of the developed synthesizer is 130 × 47 × 25mm, and the drain current is 165mA.
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